Emotet Office (OLE) / .DOCX malware analysis — malicious · 3dfac29cb19999e9

MALICIOUS

Office (OLE) / .DOCX

150.3 KB Created: 2020-09-29 07:27:00 Authoring application: Microsoft Office Word

MD5: a01a47cc59429ff2dff8a741f6b89af0 SHA-1: b405298c8de8f6aa889356b2201c47e8102738c3 SHA-256: 3dfac29cb19999e98c7c55034d7abd9cca65c3d4a7bc00c109bbdb1e57f2b2bd

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, including an auto-executing Document_Open macro and CreateObject calls, strongly indicate malicious intent. The presence of the 'macros.bas' artifact further supports this. The primary attack pattern involves luring the user to enable macros, which then likely executes a second-stage payload, consistent with Emotet downloader behavior.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9769096-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9769096-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `7fe684c304685628252d7c0111d3e33f34436ae7810b3dde5f2aa07edc7bb621`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8166 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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